Railroad-crossing gate



Sept. l5, 1925. 1,553,533

J. R. HOWARD RAILROAD CROSS ING GATE Filed March 1.7, 1923 d: 7?.flower/ a flaw, Q/

Patented Sept. 15, 1925.

UNITED STATES nuns n. HOWARD, or HOLLINS, ALABAMA.

RAILROAD-CROSSING GATE.

Application filed March 17, 1923. Serial No. 625,700.

To all whom it may concern:

Be it known that JAMES R. HOWARD, a citizen of the United States,residing at Hollins, in the countyof Clay and State of Alabama, hasinvented certain new and useful Improvements in Railroad-Crossing Gates,of which the following is a specification.

The present invention relates to railway crossing gates, and aims toprovide a simple, efficient, and reliable operating mechanism therefor.

The nature and advantages of the invention will be better understoodwhen the following detailed description is read in connection with theaccompanyingdrawings, the invention residing in the construction,combination, and arrangement of parts as claimed. I

In the drawings forming part of this application, wherein like numeralsof reference indicate similar parts in the several views:

Figure 1 is a top plan of a track section and highway crossing showingmy improved gate and operating mechanism associated therewith;

Figure 2 is an elevation of the gate per se.

Referring to the drawings in detail, A designates the track section andB the highway. Upon one side of the highway and adjacent one of therails of the track section is a motor casing 5, the top wall thereofbeing formed witha vertical hollow supporting standard 6 within which isa rotatably mounted shaft 7 supporting gate 8.

. The lower end of this post within the casing 5 has keyed thereto abevel ear 9, which bevel gear is in mesh with a similar gear 10 upon oneend of a stub shaft supported within the casing at 11. The opposite endof this stub shaft carries a friction disk 12 and engaging with thisdisk 12 is another disk 13 slidable upon one end of a shaft 14,

' which shaft constitutes the armature'shaft of an electric motor 15.The said disk 13 of the armature shaft is maintained in engagement withthe disk 12 through the instrumentalityt of acoil s rin' 16 surroundingthe sha between t e wk 13 and an abutment 17.

ate after the gate has reached either of these two positions, thefriction discs 12 and 13 are free to slip in relation to each other.

Although I have herein shown and described the preferred embodiment ofthe present invention, it is nevertheless to be understood that minorchanges may be made therein, without departing from the spirit and scopeof the invention as claimed.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

In a crossing gate structure, a casing, a standard mounted upon thecasing, a shaft journaled in the standard and having an end portionextending into the casing, a gate panel carried by the shaft, a springhoused within the standard and connected with the shaftand being undertension with a tendency to hold the shaft and gate panel at a normalposition, a stub shaft journaled in the casing, intermeshing gearsoperatively connecting the stub shaft with the first mentioned shaft, afriction disc carried by the stub shaft, a shaft in alignment'with thestub shaft and having a projection, a friction disc mounted upon thelast mentioned shaft, the last mentioned friction disc being adapted tomove longitudinally of the last mentioned shaft, a spring coiled aboutthe last mentioned shaft and attached to the I last mentioned frictiondisc and to said projection and being under compression with a tendencyto hold the last mentioned friction disc toward the first mentionedfriction disc, and means for rotating the last mentioned shaft.

In testimony whereof I aflix my signature.

, JAMES R. HOWARD.

